-
Notifications
You must be signed in to change notification settings - Fork 61
/
Copy pathpygeodesy.azimuthal-module.html
685 lines (666 loc) · 32.8 KB
/
pygeodesy.azimuthal-module.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
<?xml version="1.0" encoding="ascii"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>pygeodesy.azimuthal</title>
<link rel="stylesheet" href="epydoc.css" type="text/css" />
<script type="text/javascript" src="epydoc.js"></script>
</head>
<body bgcolor="white" text="black" link="blue" vlink="#204080"
alink="#204080">
<!-- ==================== NAVIGATION BAR ==================== -->
<table class="navbar" border="0" width="100%" cellpadding="0"
bgcolor="#a0c0ff" cellspacing="0">
<tr valign="middle">
<!-- Home link -->
<th> <a
href="pygeodesy-module.html">Home</a> </th>
<!-- Tree link -->
<th> <a
href="module-tree.html">Trees</a> </th>
<!-- Index link -->
<th> <a
href="identifier-index.html">Indices</a> </th>
<!-- Help link -->
<th> <a
href="help.html">Help</a> </th>
<!-- Project homepage -->
<th class="navbar" align="right" width="100%">
<table border="0" cellpadding="0" cellspacing="0">
<tr><th class="navbar" align="center"
><a class="navbar" target="_top" href="https://GitHub.com/mrJean1/PyGeodesy">pygeodesy</a></th>
</tr></table></th>
</tr>
</table>
<table width="100%" cellpadding="0" cellspacing="0">
<tr valign="top">
<td width="100%">
<span class="breadcrumbs">
<a href="pygeodesy-module.html">Package pygeodesy</a> ::
Module azimuthal
</span>
</td>
<td>
<table cellpadding="0" cellspacing="0">
<!-- hide/show private -->
<tr><td align="right"><span class="options"
>[<a href="frames.html" target="_top">frames</a
>] | <a href="pygeodesy.azimuthal-module.html"
target="_top">no frames</a>]</span></td></tr>
</table>
</td>
</tr>
</table>
<!-- ==================== MODULE DESCRIPTION ==================== -->
<h1 class="epydoc">Module azimuthal</h1><p class="nomargin-top"></p>
<p>Equidistant, Equal-Area, and other Azimuthal projections.</p>
<p>Classes <a href="pygeodesy.azimuthal.Equidistant-class.html"
class="link">Equidistant</a>, <a
href="pygeodesy.azimuthal.EquidistantExact-class.html"
class="link">EquidistantExact</a>, <a
href="pygeodesy.azimuthal.EquidistantGeodSolve-class.html"
class="link">EquidistantGeodSolve</a>, <a
href="pygeodesy.azimuthal.EquidistantKarney-class.html"
class="link">EquidistantKarney</a>, <a
href="pygeodesy.azimuthal.Gnomonic-class.html" class="link">Gnomonic</a>,
<a href="pygeodesy.azimuthal.GnomonicExact-class.html"
class="link">GnomonicExact</a>, <a
href="pygeodesy.azimuthal.GnomonicKarney-class.html"
class="link">GnomonicKarney</a>, <a
href="pygeodesy.azimuthal.LambertEqualArea-class.html"
class="link">LambertEqualArea</a>, <a
href="pygeodesy.azimuthal.Orthographic-class.html"
class="link">Orthographic</a> and <a
href="pygeodesy.azimuthal.Stereographic-class.html"
class="link">Stereographic</a>, classes <a
href="pygeodesy.azimuthal.AzimuthalError-class.html"
class="link">AzimuthalError</a>, <a
href="pygeodesy.azimuthal.Azimuthal7Tuple-class.html"
class="link">Azimuthal7Tuple</a> and functions <a
href="pygeodesy.azimuthal-module.html#equidistant"
class="link">equidistant</a> and <a
href="pygeodesy.azimuthal-module.html#gnomonic"
class="link">gnomonic</a>.</p>
<p><a href="pygeodesy.azimuthal.EquidistantExact-class.html"
class="link">EquidistantExact</a> and <a
href="pygeodesy.azimuthal.GnomonicExact-class.html"
class="link">GnomonicExact</a> are based on exact geodesic classes <a
href="pygeodesy.geodesicx.gx.GeodesicExact-class.html"
class="link">GeodesicExact</a> and <a
href="pygeodesy.geodesicx.gx.GeodesicLineExact-class.html"
class="link">GeodesicLineExact</a>, Python versions of <i>Charles
Karney</i>'s C++ original <a
href="https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1GeodesicExact.html"
target="_top">GeodesicExact</a>, respectively <a
href="https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1GeodesicLineExact.html"
target="_top">GeodesicLineExact</a>.</p>
<p>Using <a href="pygeodesy.azimuthal.EquidistantGeodSolve-class.html"
class="link">EquidistantGeodSolve</a> requires <i>Karney</i>'s utility <a
href="https://GeographicLib.SourceForge.io/C++/doc/GeodSolve.1.html"
target="_top">GeodSolve</a> to be executable and set in env variable
<code>PYGEODESY_GEODSOLVE</code>, see module <a
href="pygeodesy.geodsolve-module.html" class="link">geodsolve</a> for
more details.</p>
<p><a href="pygeodesy.azimuthal.EquidistantKarney-class.html"
class="link">EquidistantKarney</a> and <a
href="pygeodesy.azimuthal.GnomonicKarney-class.html"
class="link">GnomonicKarney</a> require <i>Karney</i>'s Python package <a
href="https://PyPI.org/project/geographiclib"
target="_top">geographiclib</a> to be installed.</p>
<p>Other azimuthal classes implement only (***) <a
href="https://Pubs.USGS.gov/pp/1395/report.pdf" target="_top">Snyder's
FORMULAS FOR THE SPHERE</a> and use those for any datum, spherical and
ellipsoidal. The radius used for the latter is the ellipsoid's <i>mean
radius of curvature</i> at the latitude of the projection center point.
For further justification, see the first paragraph under <a
href="https://Pubs.USGS.gov/pp/1395/report.pdf" target="_top">Snyder's
FORMULAS FOR THE ELLIPSOID, page 197</a>.</p>
<p>Page numbers in <code>Snyder</code> references apply to <a
href="https://Pubs.USGS.gov/pp/1395/report.pdf" target="_top">John P.
Snyder, "Map Projections -- A Working Manual", 1987</a>.</p>
<p>See also <a
href="https://WikiPedia.org/wiki/Azimuthal_equidistant_projection"
target="_top">here</a>, especially the <a
href="https://WikiPedia.org/wiki/Azimuthal_equidistant_projection#/media/File:Comparison_azimuthal_projections.svg"
target="_top">Comparison of the Azimuthal equidistant projection and some
azimuthal projections centred on 90° N at the same scale, ordered by
projection altitude in Earth radii</a>.</p>
<hr />
<div class="fields"> <p><strong>Version:</strong>
24.11.24
</p>
</div><!-- ==================== CLASSES ==================== -->
<a name="section-Classes"></a>
<table class="summary" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Classes</span></td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal._AzimuthalBase-class.html" class="summary-name">_AzimuthalBase</a><br />
(INTERNAL) Base class for azimuthal projections.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.AzimuthalError-class.html" class="summary-name">AzimuthalError</a><br />
An azimuthal <a href="pygeodesy.azimuthal.Equidistant-class.html"
class="link">Equidistant</a>, <a
href="pygeodesy.azimuthal.EquidistantKarney-class.html"
class="link">EquidistantKarney</a>, <a
href="pygeodesy.azimuthal.Gnomonic-class.html"
class="link">Gnomonic</a>, <a
href="pygeodesy.azimuthal.LambertEqualArea-class.html"
class="link">LambertEqualArea</a>, <a
href="pygeodesy.azimuthal.Orthographic-class.html"
class="link">Orthographic</a>, <a
href="pygeodesy.azimuthal.Stereographic-class.html"
class="link">Stereographic</a> or <a
href="pygeodesy.azimuthal.Azimuthal7Tuple-class.html"
class="link">Azimuthal7Tuple</a> issue.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.Azimuthal7Tuple-class.html" class="summary-name">Azimuthal7Tuple</a><br />
7-Tuple <code>(x, y, lat, lon, azimuth, scale, datum)</code>, in
<code>meter</code>, <code>meter</code>, <code>degrees90</code>,
<code>degrees180</code>, compass <code>degrees</code>,
<code>scalar</code> and <code>Datum</code> where <code>(x,
y)</code> is the easting and northing of a projected point,
<code>(lat, lon)</code> the geodetic location, <code>azimuth</code>
the azimuth, clockwise from true North and <code>scale</code> is
the projection scale, either <code>1 / reciprocal</code> or
<code>1</code> or <code>-1</code> in the <a
href="pygeodesy.azimuthal.Equidistant-class.html"
class="link">Equidistant</a> case.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.Equidistant-class.html" class="summary-name">Equidistant</a><br />
Azimuthal equidistant projection for the sphere***, see <a
href="https://Pubs.USGS.gov/pp/1395/report.pdf"
target="_top">Snyder, pp 195-197</a> and <a
href="https://MathWorld.Wolfram.com/AzimuthalEquidistantProjection.html"
target="_top">MathWorld-Wolfram</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal._AzimuthalGeodesic-class.html" class="summary-name">_AzimuthalGeodesic</a><br />
(INTERNAL) Base class for azimuthal projections using the
<i>wrapped</i> <a
href="https://GeographicLib.SourceForge.io/Python/doc/code.html"
target="_top">geodesic.Geodesic and geodesicline.GeodesicLine</a>
or the <i>exact</i> geodesic classes <a
href="pygeodesy.geodesicx.gx.GeodesicExact-class.html"
class="link">GeodesicExact</a> and <a
href="pygeodesy.geodesicx.gx.GeodesicLineExact-class.html"
class="link">GeodesicLineExact</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal._EquidistantBase-class.html" class="summary-name">_EquidistantBase</a><br />
(INTERNAL) Base for classes <a
href="pygeodesy.azimuthal.EquidistantExact-class.html"
class="link">EquidistantExact</a>, <a
href="pygeodesy.azimuthal.EquidistantGeodSolve-class.html"
class="link">EquidistantGeodSolve</a> and <a
href="pygeodesy.azimuthal.EquidistantKarney-class.html"
class="link">EquidistantKarney</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.EquidistantExact-class.html" class="summary-name">EquidistantExact</a><br />
Azimuthal equidistant projection, a Python version of
<i>Karney</i>'s C++ class <a
href="https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1AzimuthalEquidistant.html"
target="_top">AzimuthalEquidistant</a>, based on exact geodesic
classes <a href="pygeodesy.geodesicx.gx.GeodesicExact-class.html"
class="link">GeodesicExact</a> and <a
href="pygeodesy.geodesicx.gx.GeodesicLineExact-class.html"
class="link">GeodesicLineExact</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.EquidistantGeodSolve-class.html" class="summary-name">EquidistantGeodSolve</a><br />
Azimuthal equidistant projection, a Python version of
<i>Karney</i>'s C++ class <a
href="https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1AzimuthalEquidistant.html"
target="_top">AzimuthalEquidistant</a>, based on (exact) geodesic
<i>wrappers</i> <a
href="pygeodesy.geodsolve.GeodesicSolve-class.html"
class="link">GeodesicSolve</a> and <a
href="pygeodesy.geodsolve.GeodesicLineSolve-class.html"
class="link">GeodesicLineSolve</a> and intended <i>for testing
purposes only</i>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.EquidistantKarney-class.html" class="summary-name">EquidistantKarney</a><br />
Azimuthal equidistant projection, a Python version of
<i>Karney</i>'s C++ class <a
href="https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1AzimuthalEquidistant.html"
target="_top">AzimuthalEquidistant</a>, requiring package <a
href="https://PyPI.org/project/geographiclib"
target="_top">geographiclib</a> to be installed.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.Gnomonic-class.html" class="summary-name">Gnomonic</a><br />
Azimuthal gnomonic projection for the sphere***, see <a
href="https://Pubs.USGS.gov/pp/1395/report.pdf"
target="_top">Snyder, pp 164-168</a> and <a
href="https://MathWorld.Wolfram.com/GnomonicProjection.html"
target="_top">MathWorld-Wolfram</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal._GnomonicBase-class.html" class="summary-name">_GnomonicBase</a><br />
(INTERNAL) Base for classes <a
href="pygeodesy.azimuthal.GnomonicExact-class.html"
class="link">GnomonicExact</a>, <a
href="pygeodesy.azimuthal.GnomonicGeodSolve-class.html"
class="link">GnomonicGeodSolve</a> and <a
href="pygeodesy.azimuthal.GnomonicKarney-class.html"
class="link">GnomonicKarney</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.GnomonicExact-class.html" class="summary-name">GnomonicExact</a><br />
Azimuthal gnomonic projection, a Python version of <i>Karney</i>'s
C++ class <a
href="https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Gnomonic.html"
target="_top">Gnomonic</a>, based on exact geodesic classes <a
href="pygeodesy.geodesicx.gx.GeodesicExact-class.html"
class="link">GeodesicExact</a> and <a
href="pygeodesy.geodesicx.gx.GeodesicLineExact-class.html"
class="link">GeodesicLineExact</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.GnomonicGeodSolve-class.html" class="summary-name">GnomonicGeodSolve</a><br />
Azimuthal gnomonic projection, a Python version of <i>Karney</i>'s
C++ class <a
href="https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Gnomonic.html"
target="_top">Gnomonic</a>, based on (exact) geodesic
<i>wrappers</i> <a
href="pygeodesy.geodsolve.GeodesicSolve-class.html"
class="link">GeodesicSolve</a> and <a
href="pygeodesy.geodsolve.GeodesicLineSolve-class.html"
class="link">GeodesicLineSolve</a> and intended <i>for testing
purposes only</i>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.GnomonicKarney-class.html" class="summary-name">GnomonicKarney</a><br />
Azimuthal gnomonic projection, a Python version of <i>Karney</i>'s
C++ class <a
href="https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Gnomonic.html"
target="_top">Gnomonic</a>, requiring package <a
href="https://PyPI.org/project/geographiclib"
target="_top">geographiclib</a> to be installed.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.LambertEqualArea-class.html" class="summary-name">LambertEqualArea</a><br />
Lambert-equal-area projection for the sphere*** (aka <a
href="https://WikiPedia.org/wiki/Lambert_azimuthal_equal-area_projection"
target="_top">Lambert zenithal equal-area projection</a>, see <a
href="https://Pubs.USGS.gov/pp/1395/report.pdf"
target="_top">Snyder, pp 185-187</a> and <a
href="https://MathWorld.Wolfram.com/LambertAzimuthalEqual-AreaProjection.html"
target="_top">MathWorld-Wolfram</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.Orthographic-class.html" class="summary-name">Orthographic</a><br />
Orthographic projection for the sphere***, see <a
href="https://Pubs.USGS.gov/pp/1395/report.pdf"
target="_top">Snyder, pp 148-153</a> and <a
href="https://MathWorld.Wolfram.com/OrthographicProjection.html"
target="_top">MathWorld-Wolfram</a>.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a href="pygeodesy.azimuthal.Stereographic-class.html" class="summary-name">Stereographic</a><br />
Stereographic projection for the sphere***, see <a
href="https://Pubs.USGS.gov/pp/1395/report.pdf"
target="_top">Snyder, pp 157-160</a> and <a
href="https://MathWorld.Wolfram.com/StereographicProjection.html"
target="_top">MathWorld-Wolfram</a>.
</td>
</tr>
</table>
<!-- ==================== FUNCTIONS ==================== -->
<a name="section-Functions"></a>
<table class="summary" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Functions</span></td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a href="pygeodesy.azimuthal-module.html#equidistant" class="summary-sig-name">equidistant</a>(<span class="summary-sig-arg">lat0</span>,
<span class="summary-sig-arg">lon0</span>,
<span class="summary-sig-arg">datum</span>=<span class="summary-sig-default">Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran<code class="variable-ellipsis">...</code></span>,
<span class="summary-sig-arg">exact</span>=<span class="summary-sig-default">False</span>,
<span class="summary-sig-arg">geodsolve</span>=<span class="summary-sig-default">False</span>,
<span class="summary-sig-arg">**name</span>)</span><br />
Return an <a href="pygeodesy.azimuthal.EquidistantExact-class.html"
class="link">EquidistantExact</a>, <a
href="pygeodesy.azimuthal.EquidistantGeodSolve-class.html"
class="link">EquidistantGeodSolve</a> or (if <i>Karney</i>'s <a
href="https://PyPI.org/project/geographiclib"
target="_top">geographiclib</a> package is installed) an <a
href="pygeodesy.azimuthal.EquidistantKarney-class.html"
class="link">EquidistantKarney</a>, otherwise an <a
href="pygeodesy.azimuthal.Equidistant-class.html"
class="link">Equidistant</a> instance.</td>
<td align="right" valign="top">
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td><span class="summary-sig"><a href="pygeodesy.azimuthal-module.html#gnomonic" class="summary-sig-name">gnomonic</a>(<span class="summary-sig-arg">lat0</span>,
<span class="summary-sig-arg">lon0</span>,
<span class="summary-sig-arg">datum</span>=<span class="summary-sig-default">Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran<code class="variable-ellipsis">...</code></span>,
<span class="summary-sig-arg">exact</span>=<span class="summary-sig-default">False</span>,
<span class="summary-sig-arg">geodsolve</span>=<span class="summary-sig-default">False</span>,
<span class="summary-sig-arg">**name</span>)</span><br />
Return a <a href="pygeodesy.azimuthal.GnomonicExact-class.html"
class="link">GnomonicExact</a> or (if <i>Karney</i>'s <a
href="https://PyPI.org/project/geographiclib"
target="_top">geographiclib</a> package is installed) a <a
href="pygeodesy.azimuthal.GnomonicKarney-class.html"
class="link">GnomonicKarney</a>, otherwise a <a
href="pygeodesy.azimuthal.Gnomonic-class.html"
class="link">Gnomonic</a> instance.</td>
<td align="right" valign="top">
</td>
</tr>
</table>
</td>
</tr>
</table>
<!-- ==================== VARIABLES ==================== -->
<a name="section-Variables"></a>
<table class="summary" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Variables</span></td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type"> </span>
</td><td class="summary">
<a name="__all__"></a><span class="summary-name">__all__</span> = <code title="_ALL_LAZY.azimuthal">_ALL_LAZY.azimuthal</code>
</td>
</tr>
</table>
<!-- ==================== FUNCTION DETAILS ==================== -->
<a name="section-FunctionDetails"></a>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Function Details</span></td>
</tr>
</table>
<a name="equidistant"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">equidistant</span> (<span class="sig-arg">lat0</span>,
<span class="sig-arg">lon0</span>,
<span class="sig-arg">datum</span>=<span class="sig-default">Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran<code class="variable-ellipsis">...</code></span>,
<span class="sig-arg">exact</span>=<span class="sig-default">False</span>,
<span class="sig-arg">geodsolve</span>=<span class="sig-default">False</span>,
<span class="sig-arg">**name</span>)</span>
</h3>
</td><td align="right" valign="top"
>
</td>
</tr></table>
<p>Return an <a href="pygeodesy.azimuthal.EquidistantExact-class.html"
class="link">EquidistantExact</a>, <a
href="pygeodesy.azimuthal.EquidistantGeodSolve-class.html"
class="link">EquidistantGeodSolve</a> or (if <i>Karney</i>'s <a
href="https://PyPI.org/project/geographiclib"
target="_top">geographiclib</a> package is installed) an <a
href="pygeodesy.azimuthal.EquidistantKarney-class.html"
class="link">EquidistantKarney</a>, otherwise an <a
href="pygeodesy.azimuthal.Equidistant-class.html"
class="link">Equidistant</a> instance.</p>
<dl class="fields">
<dt>Arguments:</dt>
<dd><ul class="nomargin-top">
<li><strong class="pname"><code>lat0</code></strong> - Latitude of center point (<code>degrees90</code>).</li>
<li><strong class="pname"><code>lon0</code></strong> - Longitude of center point (<code>degrees180</code>).</li>
<li><strong class="pname"><code>datum</code></strong> - Optional datum or ellipsoid (<a
href="pygeodesy.datums.Datum-class.html" class="link">Datum</a>,
<a href="pygeodesy.ellipsoids.Ellipsoid-class.html"
class="link">Ellipsoid</a>, <a
href="pygeodesy.ellipsoids.Ellipsoid2-class.html"
class="link">Ellipsoid2</a> or <a
href="pygeodesy.ellipsoids.a_f2Tuple-class.html"
class="link">a_f2Tuple</a>) or <i>scalar</i> earth radius
(<code>meter</code>).</li>
<li><strong class="pname"><code>exact</code></strong> - Return an <a
href="pygeodesy.azimuthal.EquidistantExact-class.html"
class="link">EquidistantExact</a> instance.</li>
<li><strong class="pname"><code>geodsolve</code></strong> - Return an <a
href="pygeodesy.azimuthal.EquidistantGeodSolve-class.html"
class="link">EquidistantGeodSolve</a> instance.</li>
<li><strong class="pname"><code>name</code></strong> - Optional <code><b>name</b>=NN</code> for the projection
(<code>str</code>).</li>
</ul></dd>
<dt>Returns:</dt>
<dd>An <a href="pygeodesy.azimuthal.EquidistantExact-class.html"
class="link">EquidistantExact</a>, <a
href="pygeodesy.azimuthal.EquidistantGeodSolve-class.html"
class="link">EquidistantGeodSolve</a>, <a
href="pygeodesy.azimuthal.EquidistantKarney-class.html"
class="link">EquidistantKarney</a> or <a
href="pygeodesy.azimuthal.Equidistant-class.html"
class="link">Equidistant</a> instance.</dd>
<dt>Raises:</dt>
<dd><ul class="nomargin-top">
<li><code><strong class='fraise'><a href="pygeodesy.azimuthal.AzimuthalError-class.html">AzimuthalError</a></strong></code> - Invalid <b><code>lat0</code></b> or <b><code>lon0</code></b> or
(spherical) <b><code>datum</code></b>.</li>
<li><code><strong class='fraise'><a href="pygeodesy.errors.GeodesicError-class.html">GeodesicError</a></strong></code> - Issue with <a
href="pygeodesy.geodesicx.gx.GeodesicExact-class.html"
class="link">GeodesicExact</a>, <a
href="pygeodesy.geodsolve.GeodesicSolve-class.html"
class="link">GeodesicSolve</a> or <i>Karney</i>'s wrapped
<code>Geodesic</code>.</li>
<li><code><strong class='fraise'>TypeError</strong></code> - Invalid <b><code>datum</code></b>.</li>
</ul></dd>
</dl>
</td></tr></table>
</div>
<a name="gnomonic"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">gnomonic</span> (<span class="sig-arg">lat0</span>,
<span class="sig-arg">lon0</span>,
<span class="sig-arg">datum</span>=<span class="sig-default">Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran<code class="variable-ellipsis">...</code></span>,
<span class="sig-arg">exact</span>=<span class="sig-default">False</span>,
<span class="sig-arg">geodsolve</span>=<span class="sig-default">False</span>,
<span class="sig-arg">**name</span>)</span>
</h3>
</td><td align="right" valign="top"
>
</td>
</tr></table>
<p>Return a <a href="pygeodesy.azimuthal.GnomonicExact-class.html"
class="link">GnomonicExact</a> or (if <i>Karney</i>'s <a
href="https://PyPI.org/project/geographiclib"
target="_top">geographiclib</a> package is installed) a <a
href="pygeodesy.azimuthal.GnomonicKarney-class.html"
class="link">GnomonicKarney</a>, otherwise a <a
href="pygeodesy.azimuthal.Gnomonic-class.html" class="link">Gnomonic</a>
instance.</p>
<dl class="fields">
<dt>Arguments:</dt>
<dd><ul class="nomargin-top">
<li><strong class="pname"><code>lat0</code></strong> - Latitude of center point (<code>degrees90</code>).</li>
<li><strong class="pname"><code>lon0</code></strong> - Longitude of center point (<code>degrees180</code>).</li>
<li><strong class="pname"><code>datum</code></strong> - Optional datum or ellipsoid (<a
href="pygeodesy.datums.Datum-class.html" class="link">Datum</a>,
<a href="pygeodesy.ellipsoids.Ellipsoid-class.html"
class="link">Ellipsoid</a>, <a
href="pygeodesy.ellipsoids.Ellipsoid2-class.html"
class="link">Ellipsoid2</a> or <a
href="pygeodesy.ellipsoids.a_f2Tuple-class.html"
class="link">a_f2Tuple</a>) or <i>scalar</i> earth radius
(<code>meter</code>).</li>
<li><strong class="pname"><code>exact</code></strong> - Return a <a href="pygeodesy.azimuthal.GnomonicExact-class.html"
class="link">GnomonicExact</a> instance.</li>
<li><strong class="pname"><code>geodsolve</code></strong> - Return a <a
href="pygeodesy.azimuthal.GnomonicGeodSolve-class.html"
class="link">GnomonicGeodSolve</a> instance.</li>
<li><strong class="pname"><code>name</code></strong> - Optional <code><b>name</b>=NN</code> for the projection
(<code>str</code>).</li>
</ul></dd>
<dt>Returns:</dt>
<dd>A <a href="pygeodesy.azimuthal.GnomonicExact-class.html"
class="link">GnomonicExact</a>, <a
href="pygeodesy.azimuthal.GnomonicGeodSolve-class.html"
class="link">GnomonicGeodSolve</a>, <a
href="pygeodesy.azimuthal.GnomonicKarney-class.html"
class="link">GnomonicKarney</a> or <a
href="pygeodesy.azimuthal.Gnomonic-class.html"
class="link">Gnomonic</a> instance.</dd>
<dt>Raises:</dt>
<dd><ul class="nomargin-top">
<li><code><strong class='fraise'><a href="pygeodesy.azimuthal.AzimuthalError-class.html">AzimuthalError</a></strong></code> - Invalid <b><code>lat0</code></b> or <b><code>lon0</code></b> or
(spherical) <b><code>datum</code></b>.</li>
<li><code><strong class='fraise'><a href="pygeodesy.errors.GeodesicError-class.html">GeodesicError</a></strong></code> - Issue with <a
href="pygeodesy.geodesicx.gx.GeodesicExact-class.html"
class="link">GeodesicExact</a>, <a
href="pygeodesy.geodsolve.GeodesicSolve-class.html"
class="link">GeodesicSolve</a> or <i>Karney</i>'s wrapped
<code>Geodesic</code>.</li>
<li><code><strong class='fraise'>TypeError</strong></code> - Invalid <b><code>datum</code></b>.</li>
</ul></dd>
</dl>
</td></tr></table>
</div>
<br />
<!-- ==================== NAVIGATION BAR ==================== -->
<table class="navbar" border="0" width="100%" cellpadding="0"
bgcolor="#a0c0ff" cellspacing="0">
<tr valign="middle">
<!-- Home link -->
<th> <a
href="pygeodesy-module.html">Home</a> </th>
<!-- Tree link -->
<th> <a
href="module-tree.html">Trees</a> </th>
<!-- Index link -->
<th> <a
href="identifier-index.html">Indices</a> </th>
<!-- Help link -->
<th> <a
href="help.html">Help</a> </th>
<!-- Project homepage -->
<th class="navbar" align="right" width="100%">
<table border="0" cellpadding="0" cellspacing="0">
<tr><th class="navbar" align="center"
><a class="navbar" target="_top" href="https://GitHub.com/mrJean1/PyGeodesy">pygeodesy</a></th>
</tr></table></th>
</tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" width="100%%">
<tr>
<td align="left" class="footer">
Generated by Epydoc 3.0.1 on Sat Jan 11 15:36:20 2025
</td>
<td align="right" class="footer">
<a target="mainFrame" href="http://epydoc.sourceforge.net"
>http://epydoc.sourceforge.net</a>
</td>
</tr>
</table>
<script type="text/javascript">
<!--
// Private objects are initially displayed (because if
// javascript is turned off then we want them to be
// visible); but by default, we want to hide them. So hide
// them unless we have a cookie that says to show them.
checkCookie();
// -->
</script>
</body>
</html>